11937 -- U.S. ZIP code Municipality (1990): EAST HAMPTON, New York All ZIPs for this municipality (1990): 11937 Population (2000): 13289 Housing Units (2000): 11249 Land area (2000): 42.944411 sq. miles (111.225509 sq. km) Water area (2000): 0.506635 sq. miles (1.312179 sq. km) Total area (2000): 43.451046 sq. miles (112.537688 sq. km) Located within: New York (NY) Location: 40.995384 N, 72.185641 W